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Diffstat (limited to 'node_modules/moment/src/lib/duration/create.js')
-rw-r--r-- | node_modules/moment/src/lib/duration/create.js | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/node_modules/moment/src/lib/duration/create.js b/node_modules/moment/src/lib/duration/create.js new file mode 100644 index 0000000..a82c376 --- /dev/null +++ b/node_modules/moment/src/lib/duration/create.js @@ -0,0 +1,133 @@ +import { Duration, isDuration } from './constructor'; +import isNumber from '../utils/is-number'; +import toInt from '../utils/to-int'; +import absRound from '../utils/abs-round'; +import hasOwnProp from '../utils/has-own-prop'; +import { DATE, HOUR, MINUTE, SECOND, MILLISECOND } from '../units/constants'; +import { cloneWithOffset } from '../units/offset'; +import { createLocal } from '../create/local'; +import { createInvalid as invalid } from './valid'; + +// ASP.NET json date format regex +var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/, + // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html + // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere + // and further modified to allow for strings containing both week and day + isoRegex = + /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/; + +export function createDuration(input, key) { + var duration = input, + // matching against regexp is expensive, do it on demand + match = null, + sign, + ret, + diffRes; + + if (isDuration(input)) { + duration = { + ms: input._milliseconds, + d: input._days, + M: input._months, + }; + } else if (isNumber(input) || !isNaN(+input)) { + duration = {}; + if (key) { + duration[key] = +input; + } else { + duration.milliseconds = +input; + } + } else if ((match = aspNetRegex.exec(input))) { + sign = match[1] === '-' ? -1 : 1; + duration = { + y: 0, + d: toInt(match[DATE]) * sign, + h: toInt(match[HOUR]) * sign, + m: toInt(match[MINUTE]) * sign, + s: toInt(match[SECOND]) * sign, + ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match + }; + } else if ((match = isoRegex.exec(input))) { + sign = match[1] === '-' ? -1 : 1; + duration = { + y: parseIso(match[2], sign), + M: parseIso(match[3], sign), + w: parseIso(match[4], sign), + d: parseIso(match[5], sign), + h: parseIso(match[6], sign), + m: parseIso(match[7], sign), + s: parseIso(match[8], sign), + }; + } else if (duration == null) { + // checks for null or undefined + duration = {}; + } else if ( + typeof duration === 'object' && + ('from' in duration || 'to' in duration) + ) { + diffRes = momentsDifference( + createLocal(duration.from), + createLocal(duration.to) + ); + + duration = {}; + duration.ms = diffRes.milliseconds; + duration.M = diffRes.months; + } + + ret = new Duration(duration); + + if (isDuration(input) && hasOwnProp(input, '_locale')) { + ret._locale = input._locale; + } + + if (isDuration(input) && hasOwnProp(input, '_isValid')) { + ret._isValid = input._isValid; + } + + return ret; +} + +createDuration.fn = Duration.prototype; +createDuration.invalid = invalid; + +function parseIso(inp, sign) { + // We'd normally use ~~inp for this, but unfortunately it also + // converts floats to ints. + // inp may be undefined, so careful calling replace on it. + var res = inp && parseFloat(inp.replace(',', '.')); + // apply sign while we're at it + return (isNaN(res) ? 0 : res) * sign; +} + +function positiveMomentsDifference(base, other) { + var res = {}; + + res.months = + other.month() - base.month() + (other.year() - base.year()) * 12; + if (base.clone().add(res.months, 'M').isAfter(other)) { + --res.months; + } + + res.milliseconds = +other - +base.clone().add(res.months, 'M'); + + return res; +} + +function momentsDifference(base, other) { + var res; + if (!(base.isValid() && other.isValid())) { + return { milliseconds: 0, months: 0 }; + } + + other = cloneWithOffset(other, base); + if (base.isBefore(other)) { + res = positiveMomentsDifference(base, other); + } else { + res = positiveMomentsDifference(other, base); + res.milliseconds = -res.milliseconds; + res.months = -res.months; + } + + return res; +} |